AKC AND UKC
STANDARDS
The AKC Breed Standard

General Impression:

The American Staffordshire Terrier should give the impression of great strength for his size, a well put
together dog, muscular, but agile and graceful, keenly alive to his surroundings. He should be stocky,
not long legged or racy in outline. His courage is proverbial.

HEAD:
Medium length, deep through, broad skull, very pronounced cheek muscles, distinct stop; and ears are
set high.
EARS:
Cropped or Uncropped, the ladder preferred. Uncropped ears should be short and held rose or half prick.
Full drop to be penalized.
EYES:
Dark and round, low in skull and set far apart. No pink lids.
MUZZLE:
Medium in length,  rounded on upperside to fall away abruptly below eyes. Jaws well defined.
Underjaw to be strong and have biting power. Lips close and even. no looseness. Upper teeth to meet
tightly outside lower teeth in front. Nose definitely black.
NECK:
Heavy, slightly arched, tapering from shoulders to back of skull. No looseness of skin. Medium in
length.
SHOULDERS:
Strong and muscular with blades wide and sloping.
BACK:
Fairly short. Slight sloping from withers to rump with gentle short slope at rump to base of tail, Loins
slightly tucked.
BODY:
Well sprung ribs. deep in rear. All ribs close together. Forelegs set rather wide apart to permit chest
development. Chest deep and broad.
TAIL:
Short in comparison to size, low set, tapering to a fine point: not curled or held over back. Not docked.
LEGS:
The front legs should be straight, large round bones, pastern upright, no resemblence of bend in front.
Hindquarters well muscled, let down at hocks, turning neither in nor out. Feet of moderate size, well
arched and compact. Gait must be springy but with out roll or pace.
COAT:
Short,Close, Stiff to te touch, and glossy.
COLOR:
Any color, solid, parti, or patched is permisible, but all white, more than 80% white, black and tan, and
liver not to be encouraged.
SIZE:
Height and weight should be in proportion. A Height of about 18 to 19 inches at shoulders for the male
and 17-18 inches for the female is to be considered preferable.
FAULTS:
Faults to be penalized are: Dudley nose, light or pink eyes, tail to long or badly carried, undershot or
overshot mouths.




AMERICAN PIT BULL TERRIER (REVISED NOVEMBER 1, 2008)
Terrier Group
View Registration Requirements

Revised November 1, 2008
©Copyright 1978, United Kennel Club, Inc..

HISTORY


Sometime during the nineteenth century, dog fanciers in England, Ireland and Scotland began to
experiment with crosses between Bulldogs and Terriers, looking for a dog that combined the gameness of
the terrier with the strength and athleticism of the Bulldog. The result was a dog that embodied all of
the virtues attributed to great warriors: strength, indomitable courage, and gentleness with loved ones.
Immigrants brought these bull and terrier crosses to the United States. The American Pit Bull Terrier’s
many talents did not go unnoticed by farmers and ranchers who used their APBTs as catch dogs for semi-
wild cattle and hogs, to hunt, to drive livestock, and as family companions. Today, the American Pit
Bull Terrier continues to demonstrate its versatility, competing successfully in Obedience, Tracking,
Agility and Weight Pulls, as well as Conformation.

The United Kennel Club was the first registry to recognize the American Pit Bull Terrier. UKC founder
C. Z. Bennett assigned UKC registration number 1 to his own APBT, Bennett’s Ring, in 1898.

GENERAL APPEARANCE

The American Pit Bull Terrier is a medium-sized, solidly built, short-coated dog with smooth, well-
defined musculature. This breed is both powerful and athletic. The body is just slightly longer than tall,
but bitches may be somewhat longer in body than dogs. The length of the front leg (measured from point
of elbow to the ground) is approximately equal to one-half of the dog’s height at the withers. The head
is of medium length, with a broad, flat skull, and a wide, deep muzzle. Ears are small to medium in size,
high set, and may be natural or cropped. The relatively short tail is set low, thick at the base and tapers
to a point. The American Pit Bull Terrier comes in all colors and color patterns except merle. This breed
combines strength and athleticism with grace and agility and should never appear bulky or muscle-
bound or fine-boned and rangy. Above all else, the APBT must have the functional capability to be a
catch dog that can hold, wrestle (push and pull) and breathe easily while doing its job. Balance and
harmony of all parts are critical components of breed type.

Very Serious Fault: Any disproportionate overdone characteristic (such as short legs, excessive bone or
massive head or body) that would interfere with working ability.

CHARACTERISTICS

The essential characteristics of the American Pit Bull Terrier are strength, confidence, and zest for life.
This breed is eager to please and brimming over with enthusiasm. APBTs make excellent family
companions and have always been noted for their love of children. Because most APBTs exhibit some
level of dog aggression and because of its powerful physique, the APBT requires an owner who will
carefully socialize and obedience train the dog. The breed’s natural agility makes it one of the most
capable canine climbers so good fencing is a must for this breed. The APBT is not the best choice for a
guard dog since they are extremely friendly, even with strangers. Aggressive behavior toward humans is
uncharacteristic of the breed and highly undesirable. This breed does very well in performance events
because of its high level of intelligence and its willingness to work.


HEAD

The APBT head is unique and a key element of breed type. It is large and broad, giving the impression
of great power, but it is not disproportionate to the size of the body. Viewed from the front, the head is
shaped like a broad, blunt wedge. When viewed from the side, the skull and muzzle are parallel to one
another and joined by a well defined, moderately deep stop. Supraorbital arches over the eyes are well
defined but not pronounced. The head is well chiseled, blending strength, elegance, and character.

Very Serious Fault: Overly large, heavy heads.

SKULL - The skull is large, flat or slightly rounded, deep, and broad between the ears. Viewed from the
top, the skull tapers just slightly toward the stop. There is a deep median furrow that diminishes in
depth from the stop to the occiput. Cheek muscles are prominent but free of wrinkles. When the dog is
concentrating, wrinkles form on the forehead, which give the APBT his unique expression.

MUZZLE - The muzzle is broad and deep with a very slight taper from the stop to the nose, and a slight
falling away under the eyes. The length of muzzle is shorter than the length of skull, with a ratio of
approximately 2:3. The topline of the muzzle is straight. The lower jaw is well developed, wide and
deep. Lips are clean and tight.

Faults: Snipey muzzle; flews; weak lower jaw.

Very Serious Fault: Muzzle too short, which impairs breathing capability.

TEETH - The American Pit Bull Terrier has a complete set of evenly spaced, white teeth meeting in a
scissors bite.

Fault: Level bite.

Serious Faults: Undershot, or overshot bite; wry mouth; missing teeth (this does not apply to teeth that
have been lost or removed by a veterinarian).

NOSE - The nose is large with wide, open nostrils. The nose may be any color.

EYES - Eyes are medium size, round and set well apart and low on the skull. All colors are equally
acceptable except blue, which is a serious fault. Haw should not be visible.

Serious Faults: Bulging eyes; both eyes not matched in color; blue eyes.

EARS - Ears are high set and may be natural or cropped without preference. Prick or flat, wide ears are
not desired.

NECK

The neck is of moderate length and muscular. There is a slight arch at the crest. The neck widens
gradually from where it joins the skull to where it blends into well laid-back shoulders. The skin on the
neck is tight and without dewlap.

Faults: Neck too thin or weak; ewe neck; dewlap.

Very Serious Fault: A short, thick neck that would interfere with functional ability.

FOREQUARTERS

The shoulder blades are long, wide, muscular, and well laid back. The upper arm is roughly equal in
length to the shoulder blade and joins it at an apparent right angle.

The forelegs are strong and muscular. The elbows are set close to the body. Viewed from the front, the
forelegs are set moderately wide apart and perpendicular to the ground. The pasterns are short, powerful,
straight, and flexible. When viewed in profile, the pasterns are nearly erect.

Faults: Upright or loaded shoulders; elbows turned outward or tied-in; down at the pasterns; front legs
bowed; wrists knuckled over; toeing in or out.

Very Serious Fault: Legs shorter than half the total height at the withers.

BODY

The chest is deep, well filled in, and moderately wide with ample room for heart and lungs, but the
chest should never be wider than it is deep. The forechest does not extend much beyond the point of
shoulder. The ribs extend well back and are well sprung from the spine, then flattening to form a deep
body extending to the elbows. The back is strong and firm. The topline inclines very slightly downward
from the withers to a broad, muscular, level back. The loin is short, muscular and slightly arched to the
top of the croup, but narrower than the rib cage and with a moderate tuck-up. The croup is slightly
sloping downward.

Very Serious Fault: Overly massive body style that impedes working ability.

HINDQUARTERS

The hindquarters are strong, muscular, and moderately broad. The rump is well filled in on each side of
the tail and deep from the pelvis to the crotch. The bone, angulation, and musculature of the
hindquarters are in balance with the forequarters. The thighs are well developed with thick, easily
discerned muscles. Viewed from the side, the hock joint is well bent and the rear pasterns are well let
down and perpendicular to the ground. Viewed from the rear, the rear pasterns are straight and parallel
to one another.

Faults: Narrow hindquarters; hindquarters shallow from pelvis to crotch; lack of muscle; straight or over
angulated stifle joint; cow hocks; sickle hocks; bowed legs.

FEET

The feet are round, proportionate to the size of the dog, well arched, and tight. Pads are hard, tough, and
well cushioned. Dewclaws may be removed.

Fault: Splayed feet.

TAIL

The tail is set on as a natural extension of the topline, and tapers to a point. When the dog is relaxed, the
tail is carried low and extends approximately to the hock. When the dog is moving, the tail is carried
level with the backline. When the dog is excited, the tail may be carried in a raised, upright position
(challenge tail), but never curled over the back (gay tail).

Fault: Long tail (tail tip passes beyond point of hock).

Serious faults: Gay tail (not to be confused with challenge tail); kinked tail.

Disqualification: Bobbed tail.

COAT

The coat is glossy and smooth, close, and moderately stiff to the touch.

Faults: Curly, wavy, or sparse coat.

Disqualification: Long coat.

COLOR

Any color, color pattern, or combination of colors is acceptable, except for merle.

Disqualification: Merle

HEIGHT AND WEIGHT

The American Pit Bull Terrier must be both powerful and agile so actual weight and height are less
important than the correct proportion of weight to height. Desirable weight for a mature male in good
condition is between 35 and 60 pounds. Desirable weight for a mature female in good condition is
between 30 and 50 pounds. Dogs over these weights are not to be penalized unless they are
disproportionately massive or rangy.

Very Serious Fault: Excessively large or overly massive dogs.

GAIT

The American Pit Bull Terrier moves with a jaunty, confident attitude, conveying the impression that he
expects any minute to see something new and exciting. When trotting, the gait is effortless, smooth,
powerful, and well coordinated, showing good reach in front and drive behind. When moving, the
backline remains level with only a slight flexing to indicate suppleness. Viewed from any position, legs
turn neither in nor out, nor do feet cross or interfere with each other. As speed increases, feet tend to
converge toward center line of balance.

Faults: Legs not moving on the same plane; legs over reaching; legs crossing over in front or rear; rear
legs moving too close or touching; rolling; pacing; paddling; sidewinding; hackney action; pounding.

DISQUALIFICATIONS

Unilateral or bilateral cryptorchid. Viciousness or extreme shyness. Unilateral or bilateral deafness. Long
coat. Bobbed tail. Albinism. Merle.

Note: Although some level of dog aggression is characteristic of this breed, handlers will be expected to
comply with UKC policy regarding dog temperament at UKC events.